Any Experiences with The LuK TorCon TC0017 Torque Converter?

[Scrappycrow]

Y'all,

In one of Summit's latest mini catalogs, I ran across the Luk TorCon TC0017. Here's a page on the Sonnax site about it, and a page on an industry site about it (yes, these are both clearly marketing).

So, does anyone have any experience with this particular converter? Any input on this converter or their parts in general, @NickTransmissions ?

Yes, I'm well aware of one of the board's favorites, the CVC BU60FHD. Yes, the LuK is new (not reman'd) and is thus more expensive, but that means not having to deal with sending the core back and the expense of sending the core back as is necessary with the CVC.

Thanks in advance,
Scrappy

 

[Foggy]

Looks decent to me. I had mine built from PATC , but it looks like they are out
of business now which sucks...
You might try to check with LUK directly to see what the TC Clutch material is
and if it's the same size as stock or what
My patc is a better material and is supposed to be 40% larger clutch area

 

[donjetman]

My favorite is Precision 4646 that I installed 6+ yrs & 70K ago at just over $200 and still going strong.

https://www.tahoeyukonforum.com/threads/rear-main-seal-job-pan-etc-07-yukon-denali-6-2.108334/page-2

 

[MWD_CTSV]

The LUK Torcon 6l80 converter is based on the smaller body from the 2015+ 4.8L with a welded plate, but uses a multi-plate clutch for longevity. LUK is a long time OEM quality supplier for GM.

This might be the best stock replacement for the 4.8L/5.3L. All new parts, precision assembly and a multi plate clutch for greater lifetime.

A multi-plate clutch designed for slip is the best option for the stock programming. The LUK is probably the most cost effective option for a stock replacement with a 200K lifetime.

 

[Scrappycrow]

Thanks for the info, @MWD_CTSV . I have disabled lockup in 1-4 with my original converter and intend to reenable lockup (but with zero slip) when I install a new converter, so I'll have to find out more info about whether their clutch material can be used with zero slip.

 

[Charlie207]

The LUK Torcon 6l80 converter is based on the smaller body from the 2015+ 4.8L with a welded plate, but uses a multi-plate clutch for longevity. LUK is a long time OEM quality supplier for GM.

This might be the best stock replacement for the 4.8L/5.3L. All new parts, precision assembly and a multi plate clutch for greater lifetime.

A multi-plate clutch designed for slip is the best option for the stock programming. The LUK is probably the most cost effective option for a stock replacement with a 200K lifetime.

WHat are the downsides of this TQ vs. something like the tried & true BU60FHD?

 

[MWD_CTSV]

Thanks for the info, @MWD_CTSV . I have disabled lockup in 1-4 with my original converter and intend to reenable lockup (but with zero slip) when I install a new converter, so I'll have to find out more info about whether their clutch material can be used with zero slip.

slip capable material is difficult to achieve with longevity, so they generally all have good characteristics, including good static friction. I don't know of any good slippable clutch material that doesn't work well with programmed zero slip. Given that the clutch is multiplate and rated for high torque, is should excel at zero-slip compared side by side with a stock converter.

 

[MWD_CTSV]

WHat are the downsides of this TQ vs. something like the tried & true BU60FHD?

The only downsides I could see are that it may have a slightly higher stall speed, because of the smaller case. Aside from that, the LUK is better in every way on paper vs a reman, even with the forged cover.

 

[Charlie207]

The only downsides I could see are that it may have a slightly higher stall speed, because of the smaller case. Aside from that, the LUK is better in every way on paper vs a reman, even with the forged cover.

Hmm. Interesting.

I wish I had known about this when I was swapping TCs last year.

 

[West 1]

Any real world reviews yet on the Luk torque converter? It reads to be a better option but it would be nice to get some hands on feedback. Mine will be replaced when I tackle the rear main seal seep.

 

[jaxscuby]

I have not notice any real increase in stall speed / rpm.
did the TC swap last weekend.

 

[West 1]

Any follow up @jaxscuby now that you have a few months of use on the new Luk converter? I am ready to order one.

 

[Chris2144]

I replaced mine with the luk due to having converter shudder. I have a thread on it already.
It has been working great and as far as I can tell performs just like stock but does not slip.

 

[Foggy]

I replaced mine with the luk due to having converter shudder. I have a thread on it already.
It has been working great and as far as I can tell performs just like stock but does not slip.

Did you notice any difference in stall rpm at all ???

 

[Chris2144]

Seems to be around 16-1800

 

[West 1]

I have only 3 days driving with the new Luk Converter installed. So far I like it a lot. Stall speed feels just like the OEM part the 2008 Yukon Denali came with. 6LL80 Trans with the 6.2L engine.

What I noticed right away is it feels more like a manual transmission, much less slip while driving around town. When you accelerate mildly the converter stays locked. I like it. It engages smoothly and disengages smoothly.

No problems at all. The transmission seems to work perfectly at 147,000 miles now. With the 6.2L I was impressed at the 1000 ft pound torque capability with this converter. I only have half that power so it should last.

For around $400 delivered with no core charge or needed return it is hard to beat. For now I say money well spent and I had to do the rear main seal already so timing was perfect.

When I drained the tranny fluid to replace the converter it was pretty clean with no junk in the tranny pan other than minor dust on the magnet. The tranny got a fluid change and filter just 5,000 miles before so I hoped it would still be clean.

 

[Chris2144]

I have 5k miles on my luk converter now and it still seems to be doing just fine.
Can’t beat it for 400.

 

[Scrappycrow]

I have only 3 days driving with the new Luk Converter installed. So far I like it a lot. Stall speed feels just like the OEM part the 2008 Yukon Denali came with. 6LL80 Trans with the 6.2L engine.

What I noticed right away is it feels more like a manual transmission, much less slip while driving around town. When you accelerate mildly the converter stays locked. I like it. It engages smoothly and disengages smoothly.

Are you using stock transmission tuning? If not, what parameters did you modify (and what values)?

 

[Chris2144]

I have been using stock tuning for the last 5k but I have a trans tune already made up for it I just need to load it on.
I’ll see if I can post both files on here you would need hp tuners to look at though.
It changes shift speed, and timing.
Also changes torque converter lockup strategy and eliminates all torque converter slip.

 

[Scrappycrow]

I have been using stock tuning for the last 5k but I have a trans tune already made up for it I just need to load it on.
I’ll see if I can post both files on here you would need hp tuners to look at though.
It changes shift speed, and timing.
Also changes torque converter lockup strategy and eliminates all torque converter slip.

Thanks, I'd appreciate that. I have HP Tuners and would like to look at the differences in tuning. There are libraries of various tunes out there already, but I like to know who has experience with particular tunes to get feedback on them.